﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Collections;
using System.Text;

namespace Encriptador_DES_CFB.logica
{
    class Cajas
    {
        //primera permutacion de la clave ingresada por el usuario ya eliminado el bit menos significativo
        public static int[] Caja1 = new int[56] { 57, 49, 41, 33, 25, 17,  9, 1,
                                   58, 50, 42, 34, 26, 18, 10, 2,
                                   59, 51, 43, 35, 27, 19, 11, 3,
                                   60, 52, 44, 36, 63, 55, 47, 39,
                                   31, 23, 15, 7, 62, 54, 46, 38,
                                   30, 22, 14, 6, 61, 53, 45, 37,
                                   29, 21, 13, 5, 28, 20, 12, 4 };

        //rotacion segun la iteracion que se lleve de las claves
        public static int[] Rondas = new int[16] { 1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1 };

        //para obtener las claves(i) se usa Caja2
        public static int[] Caja2 = new int[48] {   14, 17, 11, 24, 1, 5,
                                                    3, 28, 15, 6, 21, 10,
                                                    23, 19, 12, 4, 26, 8,
                                                    16, 7, 27, 20, 13, 2,
                                                    41, 52, 31, 37, 47, 55,
                                                    30, 40, 51, 45, 33, 48, 
                                                    44, 49, 39, 56, 34, 53,
                                                    46, 42, 50, 36, 29, 32};

        //primera permutacion del mensaje
        public static int[] PermInicial = new int[64]{58, 50, 42, 34, 26, 18, 10, 2, 
                                        60, 52, 44, 36, 28, 20, 12, 4, 
                                        62, 54, 46, 38, 30, 22, 14, 6, 
                                        64, 56, 48, 40, 32, 24, 16, 8, 
                                        57, 49, 41, 33, 25, 17, 9, 1, 
                                        59, 51, 43, 35, 27, 19, 11, 3, 
                                        61, 53, 45, 37, 29, 21, 13, 5, 
                                        63, 55, 47, 39, 31, 23, 15, 7};

        //caja de expansion para poder utilizar la clave 
        public static int[] expansion = new int[48]  {32, 1, 2, 3, 4, 5, 4, 5, 
                                        6, 7, 8, 9, 8, 9, 10, 11, 
                                        12, 13, 12, 13, 14, 15, 16, 17, 
                                        16, 17, 18, 19, 20, 21, 20, 21, 
                                        22, 23, 24, 25, 24, 25, 26, 27, 
                                        28, 29, 28, 29, 30, 31, 32, 1};

        // tabla usada para poder 
        public static int[] permutacion = new int[32]{16, 7, 20, 21,
                                        29, 12, 28, 17,
                                        1, 15, 23, 26,
                                        5, 18, 31, 10,
                                        2, 8, 24, 14,
                                        32, 27, 3, 9,
                                        19, 13, 30, 6,
                                        22, 11, 4, 25};

        //las cajas que se usan
        public static int[] S_Caja = new int[512] {  14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7, //S1
                                    0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8,
                                    4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 5, 0,
                                    15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13,
                                    15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10, //S2
                                    3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5,
                                    0, 14, 7, 11, 10, 4, 12, 1, 5, 8, 12, 6, 9, 3, 2, 15,
                                    13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9,
                                    10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8, //S3
                                    13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1,
                                    13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, 12, 5, 10, 14, 7,
                                    1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12,
                                    7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15, //S4
                                    13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9,
                                    10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4,
                                    3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14,
                                    2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9, //S5
                                    14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 6,
                                    4, 2, 1, 11, 10, 13, 7, 8, 15, 9, 12, 5, 6, 3, 0, 14,
                                    11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3,
                                    12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11, //S6
                                    10, 15, 4, 2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8,
                                    9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, 10, 1, 13, 11, 6,
                                    4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13,
                                    4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1, //S7
                                    13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6,
                                    1, 4, 11, 13, 12, 3, 7, 14, 10, 15, 6, 8, 0, 5, 9, 2,
                                    6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12,
                                    13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7, //S8
                                    1, 15, 13, 8, 10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2,
                                    7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, 13, 15, 3, 5, 8,
                                    2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11};
        
        //permutacion final
        public static int[] Permt_Final = new int[] { 40, 8, 48, 16, 56, 24, 64, 32,
                                        39, 7, 47, 15, 55, 23, 63, 31,
                                        38, 6, 46, 14, 54, 22, 62, 30,
                                        37, 5, 45, 13, 53, 21, 61, 29,
                                        36, 4, 44, 12, 52, 20, 60, 28,
                                        35, 3, 43, 11, 51, 19, 59, 27,
                                        34, 2, 42, 10, 50, 18, 58, 26,
                                        33, 1, 41, 9, 49, 17, 57, 25 };      

       
    }   
}
